ASTROSAT CZTI

Data Quality Report

Orbit 56086

Creation date: 2026-02-09T22:14:06.992610
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A14_083T03_9000006548_56086cztM0_level2.fits modeM0/AS1A14_083T03_9000006548_56086cztM0_level2_quad_clean.evt
Size (bytes)637,591,68076,173,120
Size608.1 MB 72.6 MB
Events in quadrant A10,370,802294,106
Events in quadrant B2,916,755633,291
Events in quadrant C4,309,429524,687
Events in quadrant D5,533,050430,822

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0349681
B0131191
C0172881
D0207505

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6068319452.636783%
B6068941.549110%
C60695288.699951%
D6068115118.968359%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7193 6069 3168 3168 44.04% 52.20%
B 7193 6069 28 28 0.39% 0.46%
C 7194 6070 465 465 6.46% 7.66%
D 7193 6069 927 927 12.89% 15.27%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 12 115 6410214 53573.79 473 461 119.6
A 15 32 1747586 14602.76 473 461 119.6
A 3 14 143543 1195.9 473 461 119.6
B 5 172 88150 639.88 641 617 136.8
B 0 231 75803 549.63 641 617 136.8
B 10 247 71562 518.62 641 617 136.8
C 6 223 839556 5079.41 598 593 165.2
C 12 252 543502 3286.98 598 593 165.2
C 12 254 369180 2231.57 598 593 165.2
D 2 62 2362681 15042.93 551 524 157.0
D 6 42 320497 2037.69 551 524 157.0
D 8 245 269862 1715.23 551 524 157.0

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter